The Bossier banner. [volume] (Bellevue, Bossier Parish, La.) 1859-1952, 1887-08-18
NUMBER "a.
SCIENCE AND INDUSTRY.

A machine has been invented thar
will sew on 5000 buttons in day.
During the year 1886 American
mills produced 1,35O,000 tons of steel
rails, valued at $40, 900, ,OO0 The pros
pect for 1887 is still better. Pittsburgh
Posi-.
The West Lebanon penn Rolling
Mill Company has shipped chain
weighing twenty-five tons for use on
five-mast lake schooner. It requires
two cars to carry it.
A recent computation makes the
velocity of the solar system in space
only about 10000, 900 miles year. By
different method another computer
has determined the rate to be about
525, ,000.0 600 miles year.-ArkdnsaO
| Traveller.
"A Russian physicist finds that. con-
trary to general belief, the strength
and property of elongation are in
creased by low temperature in iron
and steel, the force of cohesion being
intensified by contraction
Traveller.
| A Birmingham Eng.) firm are
making oar-blades of the best sheet
steel, highly tempered. These are de-
clared to be much stronger than the
ordinary wooden blades and, being
much thinner, enter and leave the
water cleaner. They are strongly lit
ted to wooden handles.
A St. Augustine, Ga, letter de-
scribes the ice works at that place as
having a capacity of 1000 pounds per
hour. The freezing cans make mass
of 200 pounds each, and are taken out
in rotation, an average of five hourly,
after thirty-six hours exposure to the
evaporation of ammonia, 240 cans be-
ing kept at work. k.-Bostop Budget.
Last year Q886) the spots on the
sun were so small and few that it may
have been the minimum of the sun
spot period of eleven years. So says
the distinguished Italian astronomer.
; Prof. Tacchini. From the 31st OF Oc-
tober to the 18th of December there
were only six days when any trace OF q
spot could be discovered on the solar
disc, and only single tiny spot could
be observed on those days.--N z. Led
ger.
The process of taking beautiful
colored photographs has recently been
perfected by an English photographer.
! A negative of the sitter is taken by a
sentitized plate of electric light. From
the negative positive is produced on
: chemically-treated basis by the aid o.
= a solar camera and spectroscopic nj.
rangement The image is produced in
colors without the aid of hand-work OF
: brush. Chicago AdUcnce.
"A movement mas been started e
found laboratory on the New En-
u gland coast, where students, teachers
and investigators may find facilities
: for the pursuit of biology. 1t is nov
!. some years since the brief episode o
g . the Penikese laboratory, which wa
:. founded by Mr.. Anderson and intrustet
= to Professor Agassiz. During the in
y terval, summer schools of science hav
y multiplied, and few of them have sue
" cessfully maintained their modest use
" fulness.-Pnblic Opinion.
!. 1t is said that woman began tn
- manufacture of sewing thread in En-
= : gland in 1922, and it would seer
- proper that the idea should have firs
- 20 come from that sex through who's
:. hands nine-tenths of the thread passe
; - that is used. Paisley has the honor
!. being the first town that embarked
:. " the business. It was called Nun
=, thread" was made Of flax, and
hn m rapidly increased in popularity that
- was not long before it became an IN
"a portant branch Of manufacture.
u ~ BY passing hydrofuoric acid g
~ :. free from water, through glass tube
y. ~ lined with platinum, and cooled
s immersion in liquid ethylene, Profess
,n.' Kolszewski, of Krakau, finds that it
=, comes liquid. On allowing it to eva
- - orate tho liquid hydrofuoric acid soil
~ ~ ifies at-1O2.5o. At-90o phosphc
n' = ated hydrogen liquefied, and began
'e' solidify at-133o. Antimonated b
y, drogen solidifed-l02o and melted
.Se 1,e -91.5 IN. Y. Independent.
Id. The Stewart Bennett Duel.